Type-writing machine.



f C. B, CORGORAN.

\3 TYPE WRITING MACHINE.

APPLIUATIoN-FILED SEPT. e, 11113.

'Patented 1191.11, 1913.

INVENTOR:

wrrNEssi-:S:

UNITED sirn'rns p FICE.

,CORNELIUS s., concoaftiv, or natifronn, n'. asistencia ro onnmttvoon WRITER COMPANY, `or NEW Yoan, N. a, coaronarion or'lnnnawafan.

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Sp e'cvcatcniof, Letters Patent.

Patented Nov; fl. '1, 1913.

Application led September.,5,l1l913. l Serial No. 788,363. .,Q

To all who-m t may concern.'

Be 1t known that I, CORNELIUS Conco- RAN, a cltizen of the United States, residing in the' borough of Bronx, city of'NeW" York, in the county of New York and State of lNew York, have invented cer-tain new and `useful Improvements in TypelVriting Machines, of which the following -is a speciiication.

My invention relates to attachments for typewrit-ing machines to facilitate the mastery of touch typewriting and comprises a screen removably attached to the machine in position between the keyboard and the eyes of the operator, in such position as not to'interfere with the manipulation of the keys. v

lIhe invention may be considered as an improvement on the invention disclosed in the patent to S. T. Smith, No. 7 99,099, dated September 12, 1905.

An object of the invention is to provide n simple and practical means for securely .holding the screen in position on the machine, and Whichwill permit the screen to be quickly removed, or secured inlposition.

` The screen may comprise a plate extending over the keyboard and having side brackets with hooks to engage a stationary portion of the machine, the screen being locked in position by latches pivoted on the i machine frame, and each comprising a 3, tongue adapted to enter an opening in one of said brackets and thereby lock the screen in position.

In the accompanying Vdrawings Which illustrate one form of my invention, Figure l is a perspective view of the attachment applied to an Underwood typevvriting :ma- 4,0?. chine. Fig. 2 is a detail `front elevation Tview of the locking latch in locking position. Fig. 3 is a similar view With the latch disengaged. Fig. L is a side elevation View 'tot the parts shown in Fig. 2. F ig. is `a view showing a typewriter keyboard ',mark'ed upon the face of the screen.

ifi The screen comprises 'a forwardly and downwardly sloping plate l, preferably proscreen having side brackets 3 which maybe integral with the plate l, and extend downvvardly and rearwardly therefrom at righ-t angles to the plate; Each bracket is -ormed with 4a hook 4 to catch beneath the rear edge of a horizontall cap-plate 6- usually dedv at its lowerxedge With a ledge 2, Vsaidprovided in the Underwood machine bea tvveen 'the front corner posts or standards 7' ot the n1achine. Each bracket 3 has ay horizontal bearing portion 8 vvhjilzh rests on fthe cap-plate 6.

To lock the screen i-n position, ylatches 9 'are provided, each pivotally connected to the front face o1 a standard 7 by a shoulder screw 10. Each latch comprises a radial arm 1l having at its outer end an arcshaped extension or tongue l2 substantially concentric with the pivot screw l0, and adapted to enter an opening 13 formed in the ,bracket 3. The latch. may be offset at 14 to accommodate the enlargement or projection 15 which is usually provided on the frame o f the Underwood machine. The latch is also formed with a lug 16 to enu gage a projection 17 on the machine, and thus limit the outward movement-of the latch.

-Any convenientmeans for manipulating the latches,'as for example, notches 18 to receive the thumb nails of the operattn, may be provided and thereby permit theylatches to be readily Withdrawn.

It will be observed that when theilatches are `in holding position, as shown inFig. 2, they prevent upward movement oi the screen by engaging the lower edges. of 'the openings 13, and prevent rearward movement by enga-ging the front faces of said openings, Ithus locking the screen against movement in any direction. The screen may be quickly removed by swinging the latches to the Fig. 3 position, When by a slight rearward movement of the screen, the hooks 4 are disengaged, andthe screen is .entirely y freed from vthe machine.

As seen in Fig. 5, I prefer to mark upon the upper surface of the screen a representa tion 19 of the typewriter' keyboard, the keys having their natural sizes and positions, Y

thus furnishing an aid to the operator, who is studying out the keyboard withhisiingers beneath the screen.

'Variations may be resorted to Within the Scope of the invention, and portions of improvementdmay be used withont others Having thus described -my invention, it claim: i

1. The combination of a typewriting ma.n chine, a plate or screen extendingover'the iet' keyboard, brackets -on said plate with openi ings therein, and iatchee pivoted' to 'the mal chine lframe and having ton es to enter said openings and thereby loc the plate to provided with 'a hook, and latches pivotedv to the machine frame and .coperating with i said hooks to lock the plate against move- 3. The combination with atypewriting ment in any directioh.

machine, of a screen comprising a plate ha'v ing brackets secured thereto, hooks on said brackets, and pivoted latches, each formed with an arc-shaped tongue toenteran opening in the bracket. p p

4. The lcombination wtha typewriting machine, of an attachment therefor comprising a plate rovided with vdowiznvvardly elley tending brac et arms formed with openings therein, and latches pivoted to the Vmachine frame, each comprising a radal'arin and im arcshaped tongue atthe outer end -of the arm adapted to enter one of said o enings.

. CORNELIUSB. CORGOAN 2.1 Witnesses:

F. E. ALEXANDER, ,TITUs H. IRoNs. 

